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<div class="title">diagramscene.cpp</div>  </div>
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<a href="editor_2diagramscene_8cpp.html">См. документацию.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="editor_2diagramscene_8hpp.html">diagramscene.hpp</a>&quot;</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#include &lt;QDebug&gt;</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#a1fb0d5ee181479cbb2de281673e6f7b2">    4</a></span>&#160;<a class="code" href="class_diagram_scene.html#a1fb0d5ee181479cbb2de281673e6f7b2">DiagramScene::DiagramScene</a>(QMenu *itemMenu, QObject *parent) :</div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;    QGraphicsScene(parent), m_itemMenu(itemMenu), m_line(0)</div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;{</div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;    m_itemColor = Qt::white;</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;    m_lineColor = Qt::black;</div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;    m_textColor = Qt::black;</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;    m_mode = <a class="code" href="class_diagram_scene.html#a77383a13f4ef28e6617558b1cd5ea52da2111e7e49440ef0e3c2dda15eb8e95cc">MoveItem</a>;</div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;    m_itemType = <a class="code" href="class_diagram_item.html#aeda67bf28fac9b4de77086c2bf81407baf63865b78ab7a42f3908b86c2fb51474">DiagramItem::Node</a>;</div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;}</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div>
<div class="line"><a name="l00014"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#a56249136dab559afa4f840a5c92acf73">   14</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_diagram_scene.html#a56249136dab559afa4f840a5c92acf73">DiagramScene::mousePressEvent</a>(QGraphicsSceneMouseEvent *mouseEvent)</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;{</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;    <span class="keywordflow">if</span> (mouseEvent-&gt;button() != Qt::LeftButton)</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    <span class="comment">//DiagramItem* item;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;    <span class="keywordflow">switch</span> (m_mode) {</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;         <span class="keywordflow">case</span> <a class="code" href="class_diagram_scene.html#a77383a13f4ef28e6617558b1cd5ea52dab1ceb2bd43f56745733d10e37e2dafed">InsertLine</a>:</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;             m_line = <span class="keyword">new</span> QGraphicsLineItem(QLineF(mouseEvent-&gt;scenePos(),</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;                                         mouseEvent-&gt;scenePos()));</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;             m_line-&gt;setPen(QPen(m_lineColor, 2));</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;             <a class="code" href="class_diagram_scene.html#a1262695a1848999fda92750d3ed12861">addItem</a>(m_line);</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;             <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;            ;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    }</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    QGraphicsScene::mousePressEvent(mouseEvent);</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;}</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#a4c0f6af69a806c55da083a110a4eb820">   33</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_diagram_scene.html#a4c0f6af69a806c55da083a110a4eb820">DiagramScene::mouseMoveEvent</a>(QGraphicsSceneMouseEvent *mouseEvent)</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;{</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordflow">if</span> (m_mode == <a class="code" href="class_diagram_scene.html#a77383a13f4ef28e6617558b1cd5ea52dab1ceb2bd43f56745733d10e37e2dafed">InsertLine</a> &amp;&amp; m_line != 0) {</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        QLineF newline(m_line-&gt;line().p1(), mouseEvent-&gt;scenePos());</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        m_line-&gt;setLine(newline);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (m_mode == <a class="code" href="class_diagram_scene.html#a77383a13f4ef28e6617558b1cd5ea52da2111e7e49440ef0e3c2dda15eb8e95cc">MoveItem</a>)</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        QGraphicsScene::mouseMoveEvent(mouseEvent);</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;}</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#a361512439a7cf2bcd0388c78eb1bb301">   42</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_diagram_scene.html#a361512439a7cf2bcd0388c78eb1bb301">DiagramScene::mouseReleaseEvent</a>(QGraphicsSceneMouseEvent *mouseEvent)</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;{</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <span class="keywordflow">if</span> (m_line != 0 &amp;&amp; m_mode == <a class="code" href="class_diagram_scene.html#a77383a13f4ef28e6617558b1cd5ea52dab1ceb2bd43f56745733d10e37e2dafed">InsertLine</a>) {</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        QList&lt;QGraphicsItem *&gt; startItems = items(m_line-&gt;line().p1());</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        <span class="keywordflow">if</span> (startItems.count() &amp;&amp; startItems.first() == m_line)</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            startItems.removeFirst();</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        QList&lt;QGraphicsItem *&gt; endItems = items(m_line-&gt;line().p2());</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        <span class="keywordflow">if</span> (endItems.count() &amp;&amp; endItems.first() == m_line)</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;            endItems.removeFirst();</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <a class="code" href="class_diagram_scene.html#af901e53c276b9ed597253489f2fd04cb">removeItem</a>(m_line);</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        <span class="keyword">delete</span> m_line;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        <span class="keywordflow">if</span> (startItems.count() &gt; 0 &amp;&amp; endItems.count() &gt; 0 &amp;&amp;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;            startItems.first()-&gt;type() == <a class="code" href="class_diagram_item.html#ae6ccbdad79e41fd508731e5d8a729a56aca9b4f725f8096fec1addb6ee4edbc88">DiagramItem::Type</a> &amp;&amp;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            endItems.first()-&gt;type() == <a class="code" href="class_diagram_item.html#ae6ccbdad79e41fd508731e5d8a729a56aca9b4f725f8096fec1addb6ee4edbc88">DiagramItem::Type</a> &amp;&amp;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            startItems.first() != endItems.first()) {</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            <a class="code" href="class_diagram_item.html">DiagramItem</a> *startItem =</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                qgraphicsitem_cast&lt;<a class="code" href="class_diagram_item.html">DiagramItem</a> *&gt;(startItems.first());</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;            <a class="code" href="class_diagram_item.html">DiagramItem</a> *endItem =</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                qgraphicsitem_cast&lt;<a class="code" href="class_diagram_item.html">DiagramItem</a> *&gt;(endItems.first());</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <a class="code" href="class_arrow.html">Arrow</a> *arrow = <span class="keyword">new</span> <a class="code" href="class_arrow.html">Arrow</a>(startItem, endItem, <span class="stringliteral">&quot;&quot;</span>, 0, 0);</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            arrow-&gt;setColor(m_lineColor);</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            <span class="comment">//startItem-&gt;addArrow(arrow);</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            <span class="comment">//endItem-&gt;addArrow(arrow);</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            arrow-&gt;setZValue(-1000.0);</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;            <span class="comment">//addItem(arrow);</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            arrow-&gt;updatePosition();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            emit <a class="code" href="class_diagram_scene.html#a4651bd095028566a8b76319196d13eb2">arrowAdded</a>(arrow);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        }</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    }</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    m_line = 0;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    QGraphicsScene::mouseReleaseEvent(mouseEvent);</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;}</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#a1262695a1848999fda92750d3ed12861">   77</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_diagram_scene.html#a1262695a1848999fda92750d3ed12861">DiagramScene::addItem</a>(QGraphicsItem *item)</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;{</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    QGraphicsScene::addItem(item);</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <a class="code" href="class_diagram_item.html">DiagramItem</a>* ditem = qgraphicsitem_cast&lt;<a class="code" href="class_diagram_item.html">DiagramItem</a>*&gt;(item);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="keywordflow">if</span> (ditem)</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        qDebug() &lt;&lt; <span class="stringliteral">&quot;Добавлен итем &#39;&quot;</span> + ditem-&gt;<a class="code" href="class_diagram_item.html#aa9a36460047547dd1715403c09e297a6">title</a>() + <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <a class="code" href="class_arrow.html">Arrow</a>* arrow = qgraphicsitem_cast&lt;<a class="code" href="class_arrow.html">Arrow</a>*&gt;(item);</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="keywordflow">if</span> (arrow)</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;            qDebug() &lt;&lt; <span class="stringliteral">&quot;Добавлен итем &#39;&quot;</span> + arrow-&gt;<a class="code" href="class_arrow.html#affe6fbde77a7c8a1e9fab90a6e8dc092">text</a>() + <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keywordflow">else</span> qDebug() &lt;&lt; <span class="stringliteral">&quot;Добавлен итем&quot;</span>;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    }</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    qDebug() &lt;&lt; <span class="stringliteral">&quot;Стало итемов: &quot;</span> + QString::number(items().count());</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;}</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="code" href="class_diagram_scene.html#af901e53c276b9ed597253489f2fd04cb">   92</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_diagram_scene.html#af901e53c276b9ed597253489f2fd04cb">DiagramScene::removeItem</a>(QGraphicsItem *item)</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;{</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    QGraphicsScene::removeItem(item);</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <a class="code" href="class_diagram_item.html">DiagramItem</a>* ditem = qgraphicsitem_cast&lt;<a class="code" href="class_diagram_item.html">DiagramItem</a>*&gt;(item);</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordflow">if</span> (ditem)</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        qDebug() &lt;&lt; <span class="stringliteral">&quot;Удалён итем &#39;&quot;</span> + ditem-&gt;<a class="code" href="class_diagram_item.html#aa9a36460047547dd1715403c09e297a6">title</a>() + <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        <a class="code" href="class_arrow.html">Arrow</a>* arrow = qgraphicsitem_cast&lt;<a class="code" href="class_arrow.html">Arrow</a>*&gt;(item);</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        <span class="keywordflow">if</span> (arrow)</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;            qDebug() &lt;&lt; <span class="stringliteral">&quot;Удалён итем &#39;&quot;</span> + arrow-&gt;<a class="code" href="class_arrow.html#affe6fbde77a7c8a1e9fab90a6e8dc092">text</a>() + <span class="stringliteral">&quot;&#39;&quot;</span>;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        <span class="keywordflow">else</span> qDebug() &lt;&lt; <span class="stringliteral">&quot;Удалён итем&quot;</span>;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    }</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    qDebug() &lt;&lt; <span class="stringliteral">&quot;Осталось итемов: &quot;</span> + QString::number(items().count());</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;}</div>
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